polyoxyn.聚氧POLYabbr.聚乙烯(=polyethylene)pref.多的；聚合的Polychlorinated Biphenys多氯联苯polyvinyl fluoride fibre聚氟乙烯纤维polyvinylpolypyrrolidone聚乙烯聚吡咯烷酮, 交联聚维酮polytrime thylene formal聚亚丙基缩甲醛polyvinyl chloride cable聚氯乙烯绝缘电缆Polyunsaturated fat acid多不饱和脂肪酸polyurethane/zeolites聚氨酯polycarbonate safety hat聚酯安全帽poly-silicate-ferric聚硅铁polysulfone hollow fiber聚砜中空纤维